1982146 has 4 divisors (see below), whose sum is σ = 2973222. Its totient is φ = 991072.

The previous prime is 1982129. The next prime is 1982153. The reversal of 1982146 is 6412891.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1792921 + 189225 = 1339^2 + 435^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495535 + ... + 495538.

2^1982146 is an apocalyptic number.

1982146 is a deficient number, since it is larger than the sum of its proper divisors (991076).

1982146 is an equidigital number, since it uses as much as digits as its factorization.

1982146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991075.

The product of its digits is 3456, while the sum is 31.

The square root of 1982146 is about 1407.8870693348. The cubic root of 1982146 is about 125.6160733078.

The spelling of 1982146 in words is "one million, nine hundred eighty-two thousand, one hundred forty-six".